Prepare for and practice interview questions from Commonwealth Bank.

Commonwealth Bank Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Commonwealth Bank Interview Guides

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

A/B Testing & Experimentation

Job DescriptionOrganization:At CommBank we will inspire you with work that makes a difference, surround you with talent people that respect and value each other, and empower you to grow professionally and personally. Most of all, making a positive impact for customers, communities and each other is part of our every day.We’re determined to make a real difference for Australia’s first peoples. We encourage all interested applicants to apply. If you’re already part of the Commonwealth Bank Group (including Bank West), you’ll need to apply through Sidekick to submit a valid application. We’re keen to support you with the next step in your career. Job Title: Senior Manager Data Product Management Location: Bangalore Business and Team: Retail Advanced Analytics and Data (RAAD) team works closely with the Retail Banking Services domain to enable best practices in Data, Advanced Analytics and AI. Impact and Contribution: As a community of Data and Advanced Analytics professionals, we have diverse backgrounds and industry experience, with in-depth knowledge of structured and unstructured data, and Advanced Analytics techniques.We combine these with our Business Acumen to deliver innovative solutions enabling data driven decisions. We are open-minded, curious, and passionate about problem solving and data driven innovation at scale. Roles & Responsibilities:<ul><li>Drive the creation and delivery of high-quality, reusable data products for </li><li>Lead in collaboration with multiple crews within in delivering against data strategies, drive roadmaps and business priorities.</li><li>Promote data skills development and foster strong collaboration across teams.</li><li>Collaborate with Domain Data Delivery Leads to define vision and strategy of Data Products</li><li>Define and implement data needs and governance mechanisms aligned to domain’s business goals.</li><li>Ensuring all Data Products adhere to RBS Data Office guidelines on scoring thresholds, risk controls, and the Delivery Playbook, and meet CDAO standards around data management, design, and metadata</li><li>Standardise and scale the production of efficient, re-usable data products. Providing critical business context for Data Products to ensure they meet the needs of stakeholders and users</li><li>Strengthen producer-consumer data relationships across BUs/Sus and act an ‘s conduit for Data Product Management</li></ul> Essential Skills:<ul><li>Experience – 12 + Years</li><li>People Management : Demonstrated experience in managing and leading large technical teams in Data Engineering and Data Management.</li><li>Tooling: A core background in data engineering along with decent exposure to managing hands-on tools such as Python, SQL, and key AWS integration packages.</li><li>Cloud Architecture: Demonstrated experience in developing, deploying, and monitoring on AWS infrastructures.</li><li>CI/CD: Experience with version control and CI/CD pipelines such as GitHub is desirable.</li><li>Proven experience leading enterprise-level data initiatives, with a core background in Data Engineering, Architecture. </li><li>Expertise in data governance, metadata management, data product focused mindset and business-aligned data strategy.</li><li>Experience in Data Cloud migration and exposure to AWS eco system would be desirable.</li></ul> Education Qualifications:Bachelor’s degree in Engineering Or Master’s degree in Computer Science.

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

Commonwealth Bank Interview Questions

Commonwealth Bank Interview Guides

Commonwealth Bank Interview Questions

Commonwealth Bank Opening Jobs